diff -r 30c59bdd4f41 -r 39537bc64442 mercurial/bundlerepo.py
--- a/mercurial/bundlerepo.py	Wed Aug 03 15:52:11 2016 +0200
+++ b/mercurial/bundlerepo.py	Wed Aug 03 16:23:26 2016 +0200
@@ -482,11 +482,7 @@
 
         # developer config: devel.legacy.exchange
         legexc = ui.configlist('devel', 'legacy.exchange')
-        if not legexc:
-            forcebundle1 = not ui.configbool('experimental', 'bundle2-exp',
-                                             True)
-        else:
-            forcebundle1 = 'bundle2' not in legexc and 'bundle1' in legexc
+        forcebundle1 = 'bundle2' not in legexc and 'bundle1' in legexc
         canbundle2 = (not forcebundle1
                       and other.capable('getbundle')
                       and other.capable('bundle2'))